July 2010
Intermediate to advanced
840 pages
16h 33m
English
Content preview from Joe Celko's SQL for Smarties, 3rd Edition
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5.1. Problems with SQL Strings
Different programming languages handle strings differently. You simply have to do some unlearning when you get to SQL. Here are the major problem areas for programmers.
In SQL, character strings are printable characters enclosed in single quotation marks. Many older SQL implementations and several programming languages use double quotation marks or have an option that a single quotation mark can be used as an apostrophe. SQL uses two apostrophes together to represent a single apostrophe in a string literal.
Double quotation marks are reserved for column names that have embedded spaces or that are also SQL-reserved words.
Character sets fall into three categories: those defined by national or international standards, ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.